UEFA president Lennart Johansson fears trouble caused by England supporters could have repercussions not only on the country's Euro 2004 hopes but also the 2006 World Cup campaign.

European football's governing body have already warned that England risk expulsion from the European Championships if there is a repeat of the problems which marred the game against Turkey in Sunderland.

And Johansson said: "We hope nothing will happen, but if there are problems then the matter will be discussed at the organising committee of the World Cup and of course for 2004."